Annual report pursuant to Section 13 and 15(d)

QUARTERLY INFORMATION (unaudited) - Additional Information (Detail)

v3.10.0.1
QUARTERLY INFORMATION (unaudited) - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 12 Months Ended
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Dec. 31, 2017
Jun. 30, 2017
Dec. 31, 2018
Quarterly Financial Information [Line Items]            
Transformation cost   $ 97 $ 263      
Retirement cost     192      
Other transformation related costs     71     $ 262
Impact of pension mark-to-market $ 1,627     $ 800    
Income tax benefit attributable to the 2017 Tax Cuts and Jobs Act       258    
Increase (decrease) in net income $ 0 $ (73) $ (200) $ (349)    
Increase (Decrease) In Earnings Per Share Basic $ 1.43 $ (0.09) $ (0.24) $ (0.41)    
Increase (Decrease) In Earnings Per Share Diluted $ 1.42 $ (0.09) $ (0.23) $ (0.40)    
U.S. Domestic Package            
Quarterly Financial Information [Line Items]            
Transformation cost   $ 39     $ 196  
International Package            
Quarterly Financial Information [Line Items]            
Transformation cost   40     36  
Supply Chain & Freight            
Quarterly Financial Information [Line Items]            
Transformation cost   $ 18     $ 31